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OAKLEY aLjRosEKRANs.

. A Door Bell. N0-.181,672. Patented sept. 1, 1858.

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OLIVER B.A OAKLEY AND EIRAMl ROSEKRANS, OE SAN FRANCISCO, CALI- FORNIA.

Letters Patent No. 81,672, elated September 1, 1868.

IMPROVEEMENT IN DOOR-BELLS.

TO ALL'WHOM ITMY CONCERN:

13e it known thatwe, OLIVER B. OAKLEY and HInAM'RosEKRANs, ofthe city and county of San Francisco, State of California, have invented an Improved Door-Bell; and we do hereby declare the-following description and accompanying drawings are suilicient to enable any person skilled in the art or science to which it most nearly appertains to make and use our said invention or improvements without further `invention or experiment. The object of' our invention is to provide a doen-hell having a gong, that will be operated by pulling a'knob, similar 'to bells operated by means ot' coiled wires, and not by turning a crank, as they are now used, and also one which is not liable to get out of order, and which, if'it should, may be easily repaired by removing the gong. To eil'ect this, we use a gong and case of'the ordinary construction, having a standardA projecting from the centre of the ease, to the outer end of which the gong is attached. Near the centre of this standard is a projection, on the end of which a lever or bell-crank is attached so as to rotate. One 4end of this lever is pierced with a hole, throughwhich, by means of xit wire, the bell-pull is attached. When the knob is pulled, the other end ot' the lever strikes a spur on a cam, which rotates around the lower portion ofthe standard and causes the cam tol turn, when one end of the cam forces down a bar to which the elapper or hammer is attached by means of a bent wire,`un'til the llever releases 'the spur, when the rebound will cause the hammer to strike the gong.

To more fully illustrate and explain our invention, reference is had to the accompanying drawings, forming part of this specification, of whichl Figure 1 is atop view. Figure 2 is a side sectional elevation. Similar letters of reference indicate like parts. p

A is a bell-case ofthe ordinary construction, having a s tandard, B, projecting from its centre, to the outer end of which a gong, C, isattached. Near the centre of the standard B is a projection, D, to the end of which vis attached a bell-crank or lever having two arms, a and b, the arm a being the longest. -Nea-r the extremity of thc arm a are two holes, c and cl, one for the purpose of attaching the wire which connects the bellknob I and the arm a, and the other for the purpose of containing the end of a wire, E, one end of which is coiled so as to form a spring, which draws the knob back after the stroke. The end of' them-m Z1 is made round, so that when the knob is pulled, the end, Z1, ofthe lever will strike the spur c on the cam F, and turn the cam. The cam Fis placed at the bottom of the standard B, and rotates around it; and as it rotates, one of its arms forces down the bar G, to which the clapper or hammer K is attached by means of' a bent wire. When the spur of the cam is released from the end of the lever, the spring H, operating on the hammer-bar in restoring it into position, carries it by its momentum beyond its former location, and' produces the percussion on thegong.

` rlhe bell may-be placed at any distance f'roni the bell-pull, and be connected by a wire, as the common doorbells, which are operated by a coiled spring.

By ,this means, we have a bell which is not liable toget out of order, and which may be placed on doors of any'thiclincss, or at any distance fromthe door, and, at the same time, the out-door attachments are neat, While the sound of the gong-bell is more distinct and clear than that from the hanging bell. Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is-

The hammer-bar G, the cam F, and the two arms a and b, together with the knob I, AOperating by a horizontal or straight pull, either nearv the bell-gong or at a distance, substantially as and for the purpose herein dcscribed. I

In witness whereof, we have hereunto set our bands Yand seals. 4

' OLIVER B. OAKLEY. [L s.]

HIRAM EOSEKRANS. [1.. 5.] Witnesses: p

SAMUEL READ, STANFORD HILTON. 

